Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
ngang toan » nganh toan, dang toan, quang toan
truong va » truong dai, truong cao, truong dao
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tran van » luan van
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - thanh ((tran van) or (truong va)) hang cong ngang toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - thanh ((tran van) OR (truong va)) hang cong ngang toan tap*.